Finding the Third Proportional to 72,998 and 156,910

Step by Step Solution

1. Step 1: Write the proportion equation
   72,998 : 156,910 = 156,910 : x
2. Step 2: Convert to fraction form
   72,998/156,910 = 156,910/x
3. Step 3: Cross multiply
   72,998x = 156,910 × 156,910
4. Step 4: Simplify right side
   72,998x = 24,620,748,100
5. Step 5: Solve for x
   x = 24,620,748,100/72,998
6. Step 6: Final answer
   x = 337,279.76